import React, { Component } from 'react'
import {Link, BrowserRouter, Route} from "react-router-dom"
import Home from "./components/Home"
import About from "./components/About"

export default class App extends Component {
  
  render() {
    return (
      <div>
        <div className="row">
          <div className="col-xs-offset-2 col-xs-8">
            <div className="page-header"><h2>React Router Demo</h2></div>
          </div>
        </div>
        <div className="row">
          <div className="col-xs-2 col-xs-offset-2">
            <div className="list-group">
              {/* 原生html中，靠<a>跳转不同的界面 */}
              {/* <a className="list-group-item active" href="./about.html">About</a>
              <a className="list-group-item" href="./home.html">Home</a> */}
              {/* 在react中靠路由连接实现切换组件 */}
                <Link className='list-group-item' to='/about'>About</Link>
                <Link className='list-group-item' to='/home'>Home</Link>

            </div>
          </div>
          <div className="col-xs-6">
            <div className="panel">
              <div className="panel-body">
                {/* 注册路由 */}
                  <Route path='/about' component={About}/>
                  <Route path='/home' component={Home}/>
              </div>
            </div>
          </div>
        </div>      
      </div>
    )
  }
}
